Sheet-metal receptacle



c.- HAMMER, SHEET METAL -RECEPTACLE.-- APPLICATlON FILED OCT-19, 1918.

1,335,232. rafinted Mar. 30, 1920;

. V V 2 SHEETS-SHEET I.

In 0822 far:

C. HAMMER.

SHEET METAL RECEPTACLE.

APPLICATION map act. 19 I918.

Q 2 SHEETS-SHEET 2 UarZes Iamm Patented Mar. 30, 1920.

' fizz/safer:

"UNITED STATES. PATENT OFFICE.

CHARLES HAMMER, OF QUEENS, NEW YORK, AssmNoR'To AMERICAN METAL CA- OOMPANY, 0F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

' SHEET-METAL RECEPTACLE.

Specification of Letters Patent.

Patented Mar, 30, 1920.

Application filed October 19, 1918. Serial NO. 258,878.

To all whom it may concern:

Be it known that I, CHARLES HAMMER, a' citizen of the United States, residing at Queens, in the county of Queens and btate of New York, have invented certain new and useful lmprovements in Sheet-Metal Receptacles, of which the following is a specification. 1

This invention has reference to receptacles in the nature of small cans formed of suitable thin sheet metal such as iron or tin, that are designed for use as containers for various food substances, which containers are sealed by a cover that has a hermetic fastening means to preserve the contents by preventing entrance of air, or any escape from the vesseL- The object of the present invention is to provide a sheet metal vessel or receptacle of this character, with a configuration at the top whereby a sealing'flange'is formed by a special bend in the upper portion of the wall, and the marginal portion of the wall above the flange is given a bend so that the raw edge is practically concealed, whereby to cooperate with a closure that will have a compressible gasket secured between the rounded edge and the closure, which closure will cooperate with the flange for securement on the receptacle; and by which arrangement the raw edge is entirely protected from access to the contents of the receptacle. In the accompanying drawing showing embodiments of my invention, Figure 1 shows the receptacle with a cover secured thereon. Fig. 2 is a vertical section through the receptacle. Figs. 3 and 4 show a cover adapted to be applied to the receptacle; and Fig. ,5 the gasket for the same. Fig. 6 is a fragmentary section enlarged at the top of the receptacle. Fig. 7 is a similar view with the closure as first applied; Fig. 8' is a view like Fig. 7 with the closure sealed on the receptacle. Fig. 9 shows another section. Fig. 10 is a plan. Figs. 11 to 20 show ll'10d1- fications; and Fig. 21 is a section of the joint.

As shown in Figs. 1 to 9, the receptacle 10 is in the form of a cylindrical body 11, with a bottom 12 secured in any suitable manner. At the upper portion of the body is provided an outwardly extending head or flange 13, formed by a bend in the sheet metal that extends outwardly at 14, then upwardly as at 15, then inwardly as at 16, and again upwardly as at 17, the latter portion being preferably in alinement with the body portion 11, as best shown in Figs. 2 and 6. This flange 15 is so formed that the lower wall 141 of the flange constitutes a sealing shoulder extending abruptly transverse to the vertical side wall of the body, which is for the purpose of'providing a shoulder to securely anchor a flange portion of a cover, adapted to be bent inwardly around this shoulder.

The marginal portion 17 projecting upward beyond the flange 15 has a raw edge bent or doubled outwardly, for the purpose of concealing the raw edge from the contents of the receptacle. This is'preferably given a rounded shape to form a head 18 as shown, that will provide a rounded top portion adapted for engagement with a compressible gasket, located between the bead and the inner face of the closure top at its margin.

The body 11 may be integral throughout its periphery, as by stamping or spinning; or may be formed of a sheet ofnietal with the edges suitably interlocked or Otherwise secured together.

This form of receptacle is especiallyadapted to coiiperate with a. form of band closure, such as illustrated. This may coinprise a top or cap member, formed of disk 23 having a downwardly extending flange 22, of short length, adapted to engage with the receptacle at the head portion above the flange 15, as shown in Fig. 7 The cap may have a gasket 21 inserted, to be located between the cap and the bead 18,

' when applied to the receptacle. A sealing band 20 is provided that has an inwardly extending flange 19 at the top; which band is adapted to be passed down over the cap and receptacle flange 15, as shown in Fig. 7, and to have its lower edge projecting clownwardly beyond the flange. Downward pressure is applied on the cap and flange to compress the gasket 21, whereupon the projecting lower edge of the band is bent inwardly to engage the lower wall 14 of the flange as shown at 24 in Fig. 8-. This will tightly secure the closure on the receptacle, the gasket forming an air-tight connection between the bead 18 and the adjacent portion of the cap. It will be understood that the raw edge of the bead is Outside of this gasket connection and therefore protected from access to the contents of the receptacle. The flange of the receptacle is formed by merely bending the wall outwardly, and presents noraw edge. p v

In thesection in Fig. 9 the receptacle is shown as composed of a strip or plate of sheet metal of rectangular outline that is bent to a cylindrical form, and the meeting edges ar interlocked in it. suitable manner, preferably so that the vertical raw edgeis concealed on both edges, as indicated in Fig. 21. This engagement of the meeting edges is continued up to the shoulder 14 as shown in this view. But above this the meeting edges are not interlocked that would produce four thicknesses in the joint, but merely.

lap to provide a double thickness at this place, which includes the bead 18 where but two thicknesses are shown. Throughout this double thickness the lapping portions are preferably secured together as by solder or brazing, to produce a ti ht joint. This prevents an objectionable bilge at the top or beaded portion, where the receptacle is engaged by the compressible gasket.

In Figs. 11 and 12 I show a modification in which the receptacle 30 has the flange 31 formed as described, but the edge 32 is merely extended outwardly in a slight curve, instead of being rolled to form a closed bead as in Fig. 6-. y

In Figs. 13 and 14 is shown a receptacle 33 having a flange 34 similar to that shown in Fig. 6, but the outer wall 35 is slightly inclined inwardly toward the top. In this structure the upper edge or margin of the receptacle is first bent inwardly at 36 to extend substantially horizontal, and thereupon the edge 37 is curved outwardly to form. substantially a semicircle in section, to form a rounded bead for engagement with the sealing gasket.

In Figs. 15 and 16 another form of shoulder is provided for cooperation with a flange sealing band, in which the receptacle 40 is bent abruptly outward as at 41, and then bent inwardly as at 42 with these parts pressed together to form a double flange as shown. The body extends upwardly at 43, and is shown as curved outwardly at 44 to form an open bead to engage the gasket.

In Figs. 17 and 181 show the receptacle 45 as bent outwardly to form a shoulder by the wall 46, the body being then bent upwardly at 47 and given a slight incline inwardly as shown, with the margin rolled in.- wardly to form a closed head 48.

In Figs. 19 and 20 the receptacle 50 is first bent inwardly as at 51, then directly upward as at 52, then outwardly at 53. This wall. 53 forms with the upwardly extending portion 54, a shoulder adapted to cooperatewitl'i a flange sealing band, such as indicated in Figs. 7 and 8. The upper edge in this form is shown as rolled inwardly to form a closed head 55.

In each of these five modifications the receptacle may be formed of a sheet of metal bent to a cylindrical form with the margins interlocked to conceal the raw edges, as indicated at the right in these views. But the interlocking portion preferably extends only to the shoulder portion that engages the sealing. band; and above such portion the edges are merely lapped to form a double thickness, that is preferably sealed by solder or brazing. It will be understood that in each of these modifications an abrupt sealing shoulder is provided extending transverse to the axis of the receptacle. This shoulder is formed by one or more bends in the body of the can, without any raw edges and the body extends upwardly for a short distance, and is thereupon given.

a bend to provide a rounded shape at the top edge, for engagement over a considerable surface of the sealing gasket.

The form of closure illustrated is not claimed herein but forms subject matter of another application filed by myself, Serial No. 258,880.

What I claim is 1. In a receptacle, a cylindrical body portion that at the upper portion extends abruptly outward and then abruptly upward and then inwardly and then upwardly again, to form an abrupt sealing shoulder for engagement with a sealing band to be bent in around such shoulder and secure a closure on the top of the body, the upper margin of the body above said shoulder portion being rolled outwardly to form a closed bead that is located above said shoulder and inside of the wall of the seal= ing band to admit the closure flange between the band and the bead.

2. A receptacle having a cylindrical body formed of a strip of sheet metal with the upper portion bent to form a wall von the outer face of the receptacle that is substantially transverse to the body to constitute with. the body portion below such wall a sealing shoulder for a closure, the top of the body being bent to form a rounded edge or bead for the receptacle, the strip having the meeting edges interlocked, which edges include said shoulder, the said edges above the shoulder being lapped without interlocking.

3. A receptacle having a cylindrical body formed of a strip of sheet metal with the upper portion bent to form a wall on the outer face of the receptacle that is substantially transverse to the body to constitute with the body portion'below such walla sealing shoulder for a closure, the top of the body being bent to form a rounded edge or head for the receptacle, the strip having the meeting edges interlocked, which edges inelude said shoulder, the said edges above the shoulder being lapped without interlocking and secured together by a solder.

4:. A receptacle having a cylindrical body formed of a strip of sheet metal with the top portion bent outward and then upward and then inward to form a sealing shoul-' der, the marginal portion of the top above the flange being bent outwardly to form a rounded top or bead for the receptacle, which bead is located inside of the shoulder portion, the strip having the meetin edges interlocked, which edges include sai shoulder, the said edges above the shoulder being lapped without interlocking.

5. A receptacle havinga cylindrical body formed of a strip of sheet metal with the top portion bent outward and then upward and then inward to form a sealin shoulder, the marginal portion of the top a ove the flange being bent; outwardly to form a rounded top or bead for the receptacle, which head is located inside of the shoulder portion, the

strip having the meeting edges interlocked,

which edges include said shoulder, the said edges above the shoulder being lapped With- CHARLES HAMMER. 

